<div class="navbar">
    <div class="navbar-inner">
        <a href="${s.base}" class="cms-logo" title="212Lab在线学习平台"></a>
        <span class="brand">平台管理系统</span>
        <@shiro.user>
        <span class="brand" style="float: right;margin-right: 50px;color: #fff;">
        <@shiro.principal property="username">
        </span>
    </@shiro.user>
</div>
</div>